| 8.Utility Classes | ||
| 8.1.Object( 2 ) | 8.18.SortedSet( 5 ) | |
| 8.2.equals method( 3 ) | 8.19.Comparable( 1 ) | |
| 8.3.toString method( 2 ) | 8.20.Map( 18 ) | |
| 8.4.hashCode( 1 ) | 8.21.Arrays( 4 ) | |
| 8.5.clone method( 1 ) | 8.22.generics( 13 ) | |
| 8.6.Math class( 26 ) | 8.23.Scanner( 3 ) | |
| 8.7.String class( 27 ) | 8.24.Regex( 11 ) | |
| 8.8.StringBuffer( 12 ) | 8.25.Formatter( 19 ) | |
| 8.9.Wrapper classes( 30 ) | 8.26.Date( 7 ) | |
| 8.10.Boxing Unboxing( 18 ) | 8.27.Iterator( 2 ) | |
| 8.11.Collection( 13 ) | 8.28.Runtime( 1 ) | |
| 8.12.Collections( 4 ) | 8.29.System( 3 ) | |
| 8.13.List( 8 ) | 8.30.Questions( 36 ) | |
| 8.14.Vector( 1 ) | 8.31.Questions( 38 ) | |
| 8.15.LinkedList( 1 ) | 8.32.Questions( 40 ) | |
| 8.16.Set( 4 ) | 8.33.Questions( 38 ) | |
| 8.17.TreeSet( 4 ) | 8.34.Questions( 38 ) | |